Home
Class 12
PHYSICS
The total magnification produced by a co...

The total magnification produced by a compound microscope is 20,while that produced by the eye-piece alone is 5.When the microscope is focussed on a certain object,the distance between objective nad eye-piece is 14 cm.Find the focal length of objective and eye-piece,if distance of distinct vision is 20 cm.

A

virtual and diminished

B

real and diminished

C

real and enlarged

D

virtual and enlarged.

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • UNIT TEST -06

    MODERN PUBLICATION|Exercise EXERCISE|461 Videos

  • TEXUAL QUESTIONS

    MODERN PUBLICATION|Exercise EXERCISE|195 Videos

  • UNIT TEST -07

    MODERN PUBLICATION|Exercise EXERCISE|154 Videos

Similar Questions

Explore conceptually related problems

The astronomical telescope consists off objective and eye-piece.The focal length of the objective is

The magnifying power an astronomical telescope in the normal adjustment position is 100. The distance between the objective and the eyepiece is 101 cm. calculate the focal length of the objective and the eyepiece.

What is the distance between object and eye lens, when the telescope is on normal adjustment?

The focal lengths of the objective and eye-piece of a compound microscope are 4 cm and 6 cm respectively. If an object is placed at a distance of 6 cm from the objective, what is the magnification produced by the microscope? Distance of distinct vision = 25 cm.

The human eye can focus object at different distances by adjusting the focal length of the eye lens this is due to:

If the distance between the screen and object is 50 cm and the displacement of the lens is 10 cm,clculate the focal length of the lens.

A convex lens of focal length 0.12 m produces an inverted image ,which is three times as long as the object.Find the distance between the object and the lens for a real image.

Where should an object placed from a conveging lens of focal length 20 cm,so as to obtain a real image of magnification 2?

MODERN PUBLICATION-UNIT TEST -06-EXERCISE
  1. A convex lens of refractive index 1.5 has a focal length of 18 cm in a...

    Text Solution

    |

  2. The refractive indices of the crown glass for blue and red light are 1...

    Text Solution

    |

  3. The total magnification produced by a compound microscope is 20,while ...

    Text Solution

    |

  4. Explain with reason,how the resolving power of an astronomical telesco...

    Text Solution

    |

  5. An initially parallel cylindical beam travels in a medium of refractiv...

    Text Solution

    |

  6. An initially parallel cylindical beam travels in a medium of refractiv...

    Text Solution

    |

  7. An initially parallel cylindical beam travels in a medium of refractiv...

    Text Solution

    |

  8. What is the main condition to produce interference of light?

    Text Solution

    |

  9. In Young's double slit experiment what is the shape of interference fr...

    Text Solution

    |

  10. In a Young's double slit experiment,the intensity at a point,where the...

    Text Solution

    |

  11. A beam of light consisting of two wavelengths, 650 nm and 520 nm, is u...

    Text Solution

    |

  12. Define coherent sources of light, fringe width and interference of lig...

    Text Solution

    |

  13. The question has a paragraph followed by two statements, Statement 1 a...

    Text Solution

    |

  14. If I0 is the intensity of the principal maximum in the singel slit dif...

    Text Solution

    |

  15. Two point white dots are 1 mm apart on a black paper.They are viewed y...

    Text Solution

    |

  16. Wavelength of light used in an opticla instrument are lambda1=4,000 ov...

    Text Solution

    |

  17. This angle of incidence at which relfeted ligth is totally polarised f...

    Text Solution

    |

  18. When an unpolarised light intensity I0 is incident on a polarising she...

    Text Solution

    |

  19. Ray optics is valid,when characteristic dimenstions are

    Text Solution

    |

  20. A person is six feet tall.How tall must a vertical mirror be,if he is ...

    Text Solution

    |